On the planet Hallaval, Vykar steals an ancient relic he believes will give him ultimate power. But the relic is a living creature with plans of its own. Zero must team up with the Vagabonds to help stop Vykar.
It is another time, another galaxy. Two young teenagers, Tag and Gem travel through space, each searching for their missing parents whilst figuring out their identities and place in society. They are befriended by Zero, a mysterious stranger, with no recollection of his past, who takes them under his wing and protects them from aliens, renegade robots and the evil Imperium.